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Sonoma County (California)

Religious Traditions, 2010

25,820 102 11,546 107,737 1,389 23,398 313,886
Evangelical Protestant Black Protestant Mainline Protestant Catholic Orthodox Other Unclaimed

Congregational adherents include all full members, their children, and others who regularly attend services. The 2010 reports contain incomplete counts of congregations and adherents belonging to the eight largest historically African-American denominations. These denominations are not included in the 2000 reports and are largely missing from the 1990 and 1980 reports.
[More information on the data sources]


Religious Bodies Tradition Family Congregations Adherents Adherence Rate
Catholic Church Catholic Catholicism 22 63,097 162.53
Jewish Other Judaism 4 8,500 21.89
Church of Jesus Christ of Latter-day Saints, The Other Latter-day Saints 20 7,591 19.55
Southern Baptist Convention Evangelical Protestant Baptist 14 4,754 12.25
Presbyterian Church (U.S.A.) Mainline Protestant Presbyterian-Reformed 9 3,283 8.46
United Methodist Church, The Mainline Protestant Methodist/Pietist 10 3,039 7.83
Evangelical Lutheran Church in America Mainline Protestant Lutheran 4 3,016 7.77
Lutheran Church--Missouri Synod Evangelical Protestant Lutheran 8 2,685 6.92
Episcopal Church Mainline Protestant Episcopalianism/Anglicanism 9 2,671 6.88
Assemblies of God Evangelical Protestant Pentecostal 16 2,494 6.42
Seventh-day Adventist Church Evangelical Protestant Adventist 8 2,340 6.03
Black Baptists Estimate Evangelical Protestant Baptist --- 1,483 3.82
United Church of Christ Mainline Protestant Presbyterian-Reformed 8 1,479 3.81
Christian and Missionary Alliance, The Evangelical Protestant Holiness 7 1,227 3.16
Church of the Nazarene Evangelical Protestant Holiness 3 1,121 2.89
Christian Churches and Churches of Christ Evangelical Protestant Baptist 5 1,101 2.84
Churches of Christ Evangelical Protestant Baptist 12 967 2.49
Independent, Non-Charismatic Churches Evangelical Protestant
1 600 1.55
American Baptist Churches in the USA Mainline Protestant Baptist 1 588 1.51
Converge Worldwide/Baptist General Conference Evangelical Protestant Baptist 1 474 1.22
Unitarian Universalist Association of Congregations Other Liberal 1 443 1.14
Foursquare Gospel, International Church of the Evangelical Protestant Pentecostal 7 403 1.04
Evangelical Free Church of America, The Evangelical Protestant Methodist/Pietist 3 378 0.97
Independent, Charismatic Churches Evangelical Protestant Pentecostal 1 300 0.77
Pentecostal Church of God Evangelical Protestant Pentecostal 3 234 0.60
Salvation Army Evangelical Protestant Holiness 2 221 0.57
National Association of Free Will Baptists Evangelical Protestant Baptist 1 163 0.42
Christian Brethren Evangelical Protestant Ind. Fundamentalist 1 140 0.36
Friends (Quakers) Mainline Protestant European Free-Church 1 136 0.35
Apostolic Catholic Assyrian Church of the East, North American Dioceses Orthodox Eastern Liturgical (Orthodox) 0 130 0.33
Church of God (Anderson, Indiana) Evangelical Protestant Holiness 2 124 0.32
Church of God of Prophecy Evangelical Protestant Pentecostal 3 116 0.30
Christian Church (Disciples of Christ) Mainline Protestant Baptist 2 107 0.28
Wisconsin Evangelical Lutheran Synod Evangelical Protestant Lutheran 1 94 0.24
National Association of Congregational Christian Churches Mainline Protestant Presbyterian-Reformed 2 84 0.22
Reformed Church in America Mainline Protestant Presbyterian-Reformed 1 80 0.21
Church of God (Cleveland, Tennessee) Evangelical Protestant Pentecostal 1 78 0.20
Apostolic Christian Churches (Nazarene) Evangelical Protestant European Free-Church 1 65 0.17
Evangelical Lutheran Synod Evangelical Protestant Lutheran 1 53 0.14
Christian Reformed Church in North America Evangelical Protestant Presbyterian-Reformed 1 43 0.11
Church of Christ, Scientist Other Christian Science 5 --- ---
Conservative Baptist Association of America Evangelical Protestant Baptist 4 --- ---
Independent Fundamental Churches of America Evangelical Protestant Ind. Fundamentalist 1 --- ---
Open Bible Standard Churches, Inc. Evangelical Protestant Pentecostal 1 --- ---
Orthodox Church in America Orthodox Eastern Liturgical (Orthodox) 3 --- ---
Totals: 211 115,902  

The population of Sonoma County, California was 388,222 in 1990; in 1980 it was 299,681. The total population changed 29.5%. The adherent totals of the religious groups listed above (115,902) included 29.9% of the total population in 1990.

* In an effort to better match the ASARB standards for adherents, a few religious bodies changed the way their adherents were reported in 2010, including the Catholic Church, Amish groups, Friends groups, Jewish groups, the Church of Jesus Christ of Latter-day Saints, Non-denominational Christian Churches, and the United Methodist Church. This change does not affect any of the data in the newly released 2010 U.S. Religion Census: Religious Congregations & Membership Study. In fact, the data for these groups are now more comparable to that of other bodies than it was in previous decadal reports.

However, the change in methodology can distort assessments on growth or decline between 2000 and 2010 for each of these groups. County-level 2000 data using the new methodology are not readily available. ASARB staff has adjusted some 2000 county-level adherent statistics to allow for a more accurate picture on growth or decline. The revised maps and charts are now available on-line at for those who are interested in these trends.


2010 data were collected by the Association of Statisticians of American Religious Bodies (ASARB) and include statistics for 236 religious groups, providing information on the number of their congregations and adherents within each state and county in the United States. Clifford Grammich, Kirk Hadaway, Richard Houseal, Dale E. Jones, Alexei Krindatch, Richie Stanley and Richard H. Taylor supervised the collection. These data originally appeared in 2010 U.S. Religion Census: Religious Congregations & Membership Study, published by the Association of Statisticians of American Religious Bodies (ASARB). [More information on the data collection]

The adherence rate provides the number of adherents of a particular group per 1,000 population. For example, in 2010 the Episcopal Church had an adherence rate of 7.6 in Autauga County, Alabama. This means that about 8 out of every 1,000 people in Autauga County were Episcopalian.

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